Genome Announcements

In this study, we present the genome sequence of the “ Candidatus Cardinium hertigii” strain cHgTN10, an endosymbiotic bacterium of the plant-parasitic nematode Heterodera glycines . This is the first genome assembly reported for an endosymbiont directly sequenced from a tylenchid nematode.

The draft genome sequence of “ Candidatus Liberibacter asiaticus” strain TX1712, obtained from a Texas citrus tree, is reported here. Strain TX1712 has a draft genome size of 1,203,333 bp, a G+C content of 36.4%, 1,230 predicted open reading frames, and 41 RNAs and comprises 97.4% of the psy62 reference genome.

ABSTRACT Here, we report the draft genome sequence of “ Candidatus Liberibacter europaeus” ASNZ1, assembled from broom psyllids ( Arytainilla spartiophila ) from New Zealand. The assembly comprises 15 contigs, with a total length of 1.33 Mb and a G+C content of 33.5%.

ABSTRACT Here, we present the draft genome sequence of an anaerobic ammonium-oxidizing bacterium (AnAOB), “ Candidatus Brocadia,” which was enriched in an anammox reactor. A 3.2-Mb genome sequence comprising 168 contigs was assembled, in which 2,765 protein-coding genes, 47 tRNAs, and one each of 5S, 16S, and 23S rRNAs were annotated. No evidence for the presence of a nitric oxide-forming nitrite reductase was found.

ABSTRACT “ Candidatus Phycosocius bacilliformis” is an alphaproteobacterial ectosymbiont of the hydrocarbon-producing green alga Botryococcus braunii . We sequenced the whole genome of “ Ca. P. bacilliformis” BOTRYCO-2, isolated from a two-membered culture with B. braunii . The genome contains approximately 3.3 Mb, with an average G+C content of 56.91% and 3,125 predicted protein-coding genes.

ABSTRACT Investigation of collections of phytopathogenic bacteria has revealed some strains distinct from known Pectobacterium spp. We report here the draft genome sequences of five such strains, isolated during the period of 1947 to 2012. Based on comparative genomics, we propose a new candidate genomospecies of the genus Pectobacterium , “ Candidatus Pectobacterium maceratum.”

ABSTRACT The genome of “ Candidatus Carsonella ruddii” strain BT from Bactericera trigonica in Israel was sequenced. The full-length genome is 173,904 bp long and has a G+C content of 14.6%, with 224 predicted open reading frames (ORFs) and 30 RNAs.

ABSTRACT We report the 4.55-Mbp genome of “ Candidatus Fluviicola riflensis” ( Bacteroidetes ) that was manually curated to completion from Illumina data. “ Ca . Fluviicola riflensis” is a facultative anaerobe. Its ability to grow over a range of O 2 levels may favor its proliferation in an aquifer adjacent to the Colorado River in the United States.

ABSTRACT The high-quality draft genome of “ Candidatus Methanoperedens sp.” strain BLZ2, a nitrate-reducing archaeon anaerobically oxidizing methane, is presented. The genome was obtained from an enrichment culture and measures 3.74 Mb. It harbors two nitrate reductase gene clusters, an ammonium-forming nitrite reductase, and the complete reverse methanogenesis pathway. Methane that escapes to the atmosphere acts as a potent greenhouse gas. Global methane emissions are mitigated by methanotrophs, which oxidize methane to CO 2 . “ Candidatus Methanoperedens spp.” are unique methanotrophic archaea that can perform nitrate-dependent anaerobic oxidation of methane. A high-quality draft genome sequence of only 85 contigs from this archaeon is presented here.

ABSTRACT We report here four draft genome sequences belonging to clade F of the cyanobacterium “ Candidatus Synechococcus spongiarum” of the marine sponge Aplysina aerophoba , which were collected from two nearby locations in the northern Adriatic Sea. The sequences provide the basis for within-clade comparisons between members of this widespread group of cyanobacterial sponge symbionts.